Your bug report #20029: 'yes' surprisingly slow which was filed against the coreutils package, has been closed. The explanation is attached below, along with your original report. If you require more details, please reply to 20029@debbugs.gnu.org. -- 20029: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=20029 GNU Bug Tracking System Contact help-debbugs@gnu.org with problems